阅读说明：本技术 具有过载警示及保护功能的连接环 (Connecting ring with overload warning and protecting functions ) 是由 杨超 贾卓 王淼 安章亮 崔建英 张鹏 胡美华 于 2021-08-26 设计创作，主要内容包括：本发明公开一种具有过载警示及保护功能的连接环,包括与索具连接的本体,本体的形状为一端开口的弧形结构,本体靠近开口端的侧面分别设有第一台阶孔和第二台阶孔,第二台阶孔位于第一台阶孔的底部,第一台阶孔内穿设有过载销,第二台阶孔内穿设有保护销,过载销和保护销上穿设有用于与被救援物体连接的承载环；本发明能够提高救援过程中的安全性,并且结构简单,操作灵活。(The invention discloses a connecting ring with overload warning and protecting functions, which comprises a body connected with a rigging, wherein the body is in an arc structure with an opening at one end, the side surface of the body close to the opening end is respectively provided with a first step hole and a second step hole, the second step hole is positioned at the bottom of the first step hole, an overload pin penetrates through the first step hole, a protecting pin penetrates through the second step hole, and a bearing ring used for being connected with a rescued object penetrates through the overload pin and the protecting pin; the invention can improve the safety in the rescue process, and has simple structure and flexible operation.)

1. The utility model provides a go-between with overload warning and protect function which characterized in that: the rope sling comprises a body (1) connected with a rope sling, wherein the body (1) is in an arc structure with a first opening (2) at one end, a first step hole (3) and a second step hole (4) are respectively formed in the side surface, close to the first opening (2), of the body (1), and the second step hole (4) is located at the bottom of the first step hole (3); an overload pin (6) penetrates through the first step hole (3), a protection pin (8) penetrates through the second step hole (4), and a bearing ring (5) used for being connected with a rescued object penetrates through the overload pin (6) and the protection pin (8).

2. The connection ring with overload warning and protecting function according to claim 1, wherein: the top of bearing ring (5) is equipped with first through-hole (7), overload round pin (6) run through first through-hole (7), the cell body has been seted up to the bottom of bearing ring (5), protection round pin (8) run through the cell body.

3. The connection ring with overload warning and protecting function according to claim 1, wherein: first step hole (3) are including first step pinhole (31), first step pinhole (31) are close to the one end of body (1) side is equipped with first chamfer (32), first step pinhole (31) are kept away from the one end of first chamfer (32) is equipped with first step round hole (33), overload round pin (6) are located in first step pinhole (31).

4. The connection ring with overload warning and protecting function according to claim 1, wherein: the second step hole (4) comprises a second step pin hole (41), the second step pin hole (41) is close to one end of the side face of the body (1) and is provided with a second chamfer (42), the second step pin hole (41) is far away from one end of the second chamfer (42) and is provided with a second step round hole (43), and the protection pin (8) is located in the second step pin hole (41).

5. The connection ring with overload warning and protecting function according to claim 4, wherein: body (1) is close to first chamfer (32) one end is equipped with second through-hole (10), second through-hole (10) run through body (1), the axle center of second through-hole (10) passes the centre of a circle of first step pinhole (31) and perpendicular with the axle center of first step pinhole (31), body (1) is close to second chamfer (42) one end is equipped with second through-hole (10), the axle center of second through-hole (10) passes the centre of a circle of second step pinhole (41) and with the axle center of second step pinhole (41) is perpendicular, second through-hole (10) inlay and are equipped with anticreep piece.

6. The connection ring with overload warning and protecting function according to claim 5, wherein: the anti-falling part is an elastic cylindrical pin (11), and the elastic cylindrical pin (11) is arranged in the second through hole (10).

7. The connection ring with the overload warning and protecting function according to claim 6, wherein: a plurality of annular grooves are formed in the second through hole (10), the annular grooves are located at two ends of the first step pin hole (31) and the second step pin hole (41), a plurality of limiting strips (12) are arranged at two ends of the elastic cylindrical pin (11), and the annular grooves are matched with the limiting strips (12).

8. The connection ring with the overload warning and protecting function according to claim 6, wherein: the elastic cylindrical pin (11) is provided with a second opening (13), two ends of the second opening (13) are respectively provided with a plurality of first sawteeth (14) and a plurality of second sawteeth (15), and the first sawteeth (14) are matched with the second sawteeth (15).

9. The connection ring with the overload warning and protecting function according to claim 6, wherein: the diameter of the first step round hole (33) is smaller than that of the first step pin hole (31), and the diameter of the second step round hole (43) is smaller than that of the second step pin hole (41).

10. The connection ring with overload warning and protecting function according to claim 3, wherein: overload round pin (6) are in including spliced pole (61) and rigid coupling end (62) at spliced pole (61) both ends, end (62) are kept away from the one end of spliced pole (61) is equipped with third chamfer (63), end (62) with spliced pole (61) forming structure as an organic whole, spliced pole (61) with the top butt of first through-hole (7).

Technical Field

The invention relates to the field of rescue, in particular to a connecting ring with overload warning and protecting functions.

Background

In the accident rescue process, due to the complex field environment and unpredictable rescue pulling force, the rescue object is easily damaged due to overload, or due to the breakage of the overload rescue rigging, the impact force can cause the rigging to be thrown out and hurt people and facilities around. Therefore, a new connection ring with overload warning and protection functions is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a connecting ring with overload warning and protecting functions, so as to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a connecting ring with overload warning and protecting functions, which comprises a body connected with a rigging, wherein the body is in an arc structure with an opening at one end, a first step hole and a second step hole are respectively arranged on the side surface of the body close to the opening end, the second step hole is positioned at the bottom of the first step hole, an overload pin penetrates through the first step hole, a protecting pin penetrates through the second step hole, and a bearing ring used for being connected with a rescued object penetrates through the overload pin and the protecting pin.

Preferably, the top of the bearing ring is provided with a first through hole, the overload pin penetrates through the first through hole, the bottom of the bearing ring is provided with a groove body, and the protection pin penetrates through the groove body.

Preferably, the first step hole comprises a first step pin hole, a first chamfer is arranged at one end, close to the side face of the body, of the first step pin hole, a first step round hole is arranged at one end, far away from the first chamfer, of the first step pin hole, and the overload pin is located in the first step pin hole.

Preferably, the second step hole comprises a second step pin hole, a second chamfer is arranged at one end, close to the side face of the body, of the second step pin hole, a second step round hole is arranged at one end, far away from the second chamfer, of the second step pin hole, and the protection pin is located in the second step pin hole.

Preferably, the body is close to first chamfer one end is equipped with the second through-hole, the second through-hole runs through the body, the axle center of second through-hole passes the centre of a circle of first step pinhole and is perpendicular with the axle center of first step pinhole, the body is close to second chamfer one end is equipped with the second through-hole, the axle center of second through-hole passes the centre of a circle of second step pinhole and with the axle center of second step pinhole is perpendicular, the second through-hole inlays and is equipped with anticreep spare.

Preferably, the anti-falling part is an elastic cylindrical pin, and the elastic cylindrical pin is arranged in the second through hole.

Preferably, a plurality of annular grooves are formed in the second through hole, the annular grooves are located at two ends of the first step pin hole and the second step pin hole, a plurality of limiting strips are arranged at two ends of the elastic cylindrical pin, and the annular grooves are matched with the limiting strips.

Preferably, the elastic cylindrical pin is provided with an opening, two ends of the opening are respectively provided with a plurality of first sawteeth and a plurality of second sawteeth, and the first sawteeth are matched with the second sawteeth.

Preferably, the diameter of the first stepped round hole is smaller than that of the first stepped pin hole, and the diameter of the second stepped round hole is smaller than that of the second stepped pin hole.

Preferably, the overload round pin includes that spliced pole and rigid coupling are in the end in the spliced pole both ends, the end is kept away from the one end of spliced pole is equipped with the third chamfer, the end with the spliced pole is the integrated into one piece structure, the spliced pole with the top butt of first through-hole.

The invention discloses the following technical effects: the overload warning function has the same breaking load capacity as the bearing capacity of the object to be rescued, once the overload phenomenon occurs in the using process, the overload pin can be broken, the warning function is achieved in the using process, the protection pin functions after the overload pin is broken, the overall tensile force of the rigging can act on the protection pin, the matched rigging can be protected from being broken and flying out when the overload pin is broken and fails, the safety in the rescuing process is greatly improved, the structure is simple, and the operation is flexible.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view of an assembly structure of a connection ring with overload warning and protecting functions according to the present invention;

FIG. 2 is an assembled front view of a connection ring with overload warning and protection functions according to the present invention;

FIG. 3 is a schematic structural view of the body;

FIG. 4 is a side view of the body;

FIG. 5 is a schematic view of the overload pin;

FIG. 6 is a schematic structural view of a resilient cylindrical pin;

FIG. 7 is a schematic structural view of a load ring;

FIG. 8 is a schematic structural view of example 2;

FIG. 9 is a side view of the body in example 3;

FIG. 10 is a schematic structural view of a guard mechanism in embodiment 3;

wherein: 1. a body; 2. a first opening; 3. a first stepped bore; 31. a first stepped pin hole; 32. a first chamfer; 33. a first step circular hole; 4. a second stepped bore; 41. a second stepped pin hole; 42. a second chamfer; 43. a second step circular hole; 5. a load ring; 6. an overload pin; 61. connecting columns; 62. a tip; 63. a third chamfer; 7. a first through hole; 8. a protection pin; 9. a pear-shaped groove; 10. a second through hole; 11. an elastic cylindrical pin; 12. a limiting strip; 13. a second opening; 14. a first saw tooth; 15. a second saw tooth; 16. a limiting groove; 17. a reinforcement layer; 18. a groove; 19. an elastic sheet; 20. a protection plate; 21. a cavity; 22. a bump; 23. a pressing head; 24. a spring; 25. a limiting plate; 26. a linker; 27. a connecting wire; 28. a pillar; 29. a flexible fastener; 30. and (4) a guide wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example 1

Referring to fig. 1-7, the invention provides a connecting ring with overload warning and protection functions, which comprises a body 1 connected with a rigging, wherein the body 1 is in an arc structure with a first opening 2 at one end, specifically in a U-shaped structure, a first step hole 3 and a second step hole 4 are respectively arranged on the side surface of the body 1 close to the first opening 2, the second step hole 4 is arranged at the bottom of the first step hole 3, an overload pin 6 penetrates through the first step hole 3, a protection pin 8 penetrates through the second step hole 4, and a bearing ring 5 used for being connected with a rescued object penetrates through the overload pin 6 and the protection pin 8.

Connect body 1 and rigging, bear ring 5 with by the rescue object connection, if tensile force load surpassed by the bearing capacity of rescue object in the use, overload round pin 6 can break earlier, play the warning effect this moment, should stop continuing the loading, overload round pin 6 fracture simultaneously in the twinkling of an eye, the whole pulling force of its rigging can be acted on protection pin 8, can play when overloading round pin 6 fracture inefficacy, the supporting rigging of protection is constantly cracked and is fled out, the security that has improved the rescue in-process greatly.

The top that bears ring 5 is equipped with first through-hole 7, and overload round pin 6 runs through first through-hole 7, and the cell body has been seted up to the bottom that bears ring 5, and protection pin 8 runs through the cell body, the cell body specifically is pyriform groove 9, and the top diameter in pyriform groove 9 is less than the diameter of pyriform groove 9 bottom, and the advantage in pyriform groove 9 is for providing bigger effective space for the rescue object to can make connect more convenient, by the rescue object activity more freely.

According to a further optimized scheme, the first stepped hole 3 comprises a first stepped pin hole 31, a first chamfer 32 is arranged at one end, close to the side face of the body 1, of the first stepped pin hole 31, a first stepped round hole 33 is arranged at one end, far away from the first chamfer 32, of the first stepped pin hole 31, and the overload pin 6 is located in the first stepped pin hole 31.

The first step pin hole 31 is used for placing the overload pin 6, the diameter of the overload pin 6 is calculated by repeatedly calculating the cross section area of the overload pin according to the combination of the required breaking force value and the breaking strength value of the material, then a heat treatment process is formulated, after heat treatment, test verification is carried out, each parameter is adjusted according to the test result, finally the heat treatment process that the diameter of the overload pin 6 is matched with the breaking value is determined, the breaking load is the same as the bearing capacity of the rescued object, once the overload phenomenon occurs in the using process, the overload pin 6 can be broken, the first chamfer 32 is arranged to facilitate the insertion of the overload pin 6 into the first stepped pin hole 31, first step round hole 33 is spacing to transship round pin 6, prevents to transship round pin 6 and deviates from, is convenient for simultaneously after the use is accomplished, will transship round pin 6 and take out from first step pinhole 31.

In a further optimized scheme, the second stepped hole 4 comprises a second stepped pin hole 41, a second chamfer 42 is arranged at one end, close to the side face of the body 1, of the second stepped pin hole 41, a second stepped round hole 43 is arranged at one end, far away from the second chamfer 42, of the second stepped pin hole 41, and the protection pin 8 is located in the second stepped pin hole 41.

Second step pinhole 41 is used for placing protection round pin 8, the 8 function play roles of protection round pin after overloading round pin 6 fracture, the whole pulling force of rigging can be used in protection round pin 8, can play when overloading round pin 6 fracture failure, the supporting rigging of protection is constantly cracked and is fly out, second chamfer 42 on the second step pinhole 41 is convenient for insert protection round pin 8 in second step pinhole 41, second step round hole 43 is spacing to protection round pin 8, prevent that protection round pin 8 from deviating from, be convenient for simultaneously after the use is accomplished, take out protection round pin 8 from second step pinhole 41.

According to a further optimization scheme, a second through hole 10 is formed in one end, close to the first chamfer 32, of the body 1, the second through hole 10 penetrates through the body 1, the axis of the second through hole 10 penetrates through the circle center of the first step pin hole 31 and is perpendicular to the axis of the first step pin hole 31, a second through hole 10 is formed in one end, close to the second chamfer 42, of the body 1, the axis of the second through hole 10 penetrates through the circle center of the second step pin hole 41 and is perpendicular to the axis of the second step pin hole 41, and an anti-falling part is embedded in the second through hole 10.

In a further optimized scheme, the anti-falling part is an elastic cylindrical pin 11, and the elastic cylindrical pin 11 is arranged in the second through hole 10.

The elastic cylindrical pin 11 is used for preventing the overload pin 6 from falling out or breaking off from the first step pin hole 31 in the using process, and accidentally injuring workers or other facilities; the resilient cylindrical pin 11 also serves to prevent the guard pin 8 from coming out during use.

In order to prevent the elastic cylindrical pin 11 from being separated from the second through hole 10, a plurality of annular grooves are formed in the second through hole 10, the annular grooves are located at two ends of the first stepped pin hole 31 and the second stepped pin hole 41, a plurality of limiting strips 12 are arranged at two ends of the elastic cylindrical pin 11, and the annular grooves are matched with the limiting strips 12.

Further optimize the scheme, in order to make the elastic cylindrical pin 11 place more firmly in the second through hole 10, be convenient for take out the elastic cylindrical pin 11 from the second through hole 10 simultaneously, be equipped with the second opening 13 on the elastic cylindrical pin 11, the both ends of second opening 13 are equipped with a plurality of first sawtooth 14 and a plurality of second sawtooth 15 respectively, first sawtooth 14 and second sawtooth 15 looks adaptation.

Further optimizing scheme, in order to be convenient for carry on spacingly to transshipping round pin 6 and protection round pin 8, prevent that transshipping round pin 6 and protection round pin 8 deviate from in the use, the diameter of first step round hole 33 is less than the diameter of first step pinhole 31, and the diameter of second step round hole 43 is less than the diameter of second step pinhole 41.

Further optimize the scheme, overload round pin 6 includes spliced pole 61 and the end 62 of rigid coupling in spliced pole 61 both ends, and the one end that spliced pole 61 was kept away from to end 62 is equipped with third chamfer 63, and end 62 and spliced pole 61 are the integrated into one piece structure, and spliced pole 61 is supported with the top of first through-hole 7.

Two tips 62 are inserted into the first stepped pin bore 31 and a third chamfer 63 is provided to facilitate insertion of the tips 62 into the first stepped pin bore 31.

In a further optimized scheme, the thickness of the top of the body 1 is smaller than that of the bottom opening end of the body 1.

Example 2

In addition to embodiment 1, referring to fig. 8, the inner sides of the two ends of the elastic cylindrical pin 11 are fixedly connected with the limiting grooves 16, the middle of the inner side of the elastic cylindrical pin 11 is fixedly connected with the reinforcing layer 17, the two ends of the reinforcing layer 17 are respectively fixedly connected with the grooves 18, and the elastic sheets 19 are embedded between the limiting grooves 16 and the grooves 18.

In order to increase the elasticity of the elastic cylindrical pin 11, in the use process, the elastic sheet 19 on the two sides of the reinforcing layer 17 is used for increasing the elasticity of the elastic cylindrical pin 11, the elastic sheet 19 acts on the body 1, the reinforcing layer 17 is arranged in the middle of the elastic cylindrical pin 11, when the overload pin 6 breaks, the elastic cylindrical pin 11 may be impacted by the overload pin 6, and the reinforcing layer 17 can increase the strength of the elastic cylindrical pin 11 and prevent the elastic cylindrical pin 11 from breaking.

Example 3

The difference between the embodiment 1 and the embodiment 2 is that, referring to fig. 9-10, a protection mechanism is disposed on one side of the body 1 close to the elastic cylindrical pin 11, the protection mechanism includes a protection plate 20 hinged to one side of the body 1, the other side of the protection plate 20 is detachably connected to the body 1, one side of the protection plate 20 away from the hinged portion is provided with two pressing portions, the body 1 is provided with two cavities 21, the pressing portions and the cavities 21 are correspondingly disposed, the tops of two sides in the cavities 21 are symmetrically and fixedly connected with bumps 22, each pressing portion includes a pressing head 23 slidably connected to the protection plate 20, the pressing head 23 penetrates through the protection plate 20 and extends into the cavity 21, one end of a spring 24 is fixedly connected to the inside of the pressing head 23, the other end of the spring 24 is fixedly connected to the top surface of the protection plate 20, two sides of one end of the pressing head 23 extending into the cavity 21 are fixedly connected with limiting plates 25, and a connector 26 is fixedly connected to the bottom of the pressing head 23, the connecting body 26 is located the cavity 21, the one end of connecting wire 27 is fixedly connected to the connecting body 26, the pillar 28 and the flexible clamping piece 29 are symmetrically and fixedly connected to two sides of the bottom surface of the protection plate 20 respectively, the pillar 28 is located between the flexible clamping piece 29 and the pressing head 23, the bottom of the pillar 28 is rotatably connected with the guide wheel 30, the connecting wire 27 penetrates through the guide wheel 30 and is fixedly connected with the bottom of the flexible clamping piece 29, and the flexible clamping piece 29 is clamped with the bottom surface of the bump 22.

In order to prevent the overload pin 6 and the elastic cylindrical pin 11 from popping out after being broken, a protection mechanism is arranged on the side surface of the body 1, when the protection plate 20 is gradually close to the top surface of the convex block 22, a guide inclined plane is arranged at the bottom of one end, close to the convex block 22, of the flexible clamping piece 29, so that the flexible clamping piece 29 enters the cavity 21 along the side wall of the convex block 22, when the flexible clamping piece 29 is attached to the bottom surface of the convex block 22, the bottom surface of the protection plate 20 is attached to the side surface of the body 1, and at the moment, the protection plate 20 cannot be opened; after the use is finished, when the protection plate 20 needs to be opened, the pressing head 23 is pressed, the pressing head 23 descends, the spring 24 in the pressing head 23 contracts, the connecting body 26 and the connecting line 27 at the bottom of the pressing head 23 are driven to descend, the connecting line 27 connected with the flexible clamping piece 29 moves towards one side of the pressing head 23, the guide wheel 30 can reduce the friction force of the connecting line 27 in the moving process, the service life of the connecting line 27 is prolonged, the connecting line 27 enables the bottoms of the flexible clamping pieces 29 on two sides to be separated from the convex blocks 22, the protection plate 20 can be opened at the moment, after the protection plate 20 is opened, the pressing head 23 is loosened, the pressing head 23 bounces under the action of the spring 24, meanwhile, the limiting plate 25 limits the pressing head 23, the pressing head 23 is prevented from being popped out of the protection plate 20, and the flexible clamping pieces 29 return to a natural vertical state.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.